MAX8707 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8707
Maxim Integrated
MAX8707 Datasheet PDF : 37 Pages
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Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
Typical Operating Characteristics
(Circuit of Figure 1. VIN = 12V, VCC = 5V, SUS = SKIP = GND, SHDN = VCC, VSUSV = 0.80V, TA = +25°C, unless otherwise specified.)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.525V)
100
VIN = 8V
90
EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.300V)
100
VIN = 8V
90
EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.000V)
100
VIN = 8V
90
80
80
80
VIN = 12V
VIN = 12V
70
70
70
VIN = 20V
VIN = 20V
60
60
60
VIN = 12V
VIN = 20V
50
1
10
100
LOAD CURRENT (A)
OUTPUT VOLTAGE DEVIATION
vs. LOAD CURRENT
20
VIN = 12V
0
-20
VOUT = 1.00V
-40
-60
VOUT = 1.30V
-80
-100
-120
0
20
40
60
80
LOAD CURRENT (A)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
(1-PHASE PULSE SKIPPING)
10
SKIP = GND
8
IBIAS
6
4
2
IIN = 15µA
0
0
5
10
15
20
25
INPUT VOLTAGE (V)
50
1
10
100
LOAD CURRENT (A)
SINGLE-PHASE
EFFICIENCY vs. LOAD CURRENT
(VOUT = 0.800V)
100
90
VIN = 8V
VIN = 12V
80
70
VIN = 20V
60
50
0.1
SKIP = SUS = VCC
1
10
100
LOAD CURRENT (A)
150
100
50
0
-50
-100
-150
0
OUTPUT OFFSET VOLTAGE
vs. OFS VOLTAGE
UNDEFINED
REGION
0.5
1.0
1.5
2.0
OFS VOLTAGE (V)
50
1
10
100
LOAD CURRENT (A)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
(4-PHASE FORCED-PWM MODE)
200
IBIAS
150
100
IIN
50
SKIP = VCC
0
0
5
10
15
20
25
INPUT VOLTAGE (V)
REFERENCE VOLTAGE
DISTRIBUTION
50
SAMPLE SIZE = 100
40
30
20
10
0
1.990
1.995 2.000 2.005
REFERENCE VOLTAGE (V)
2.010
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